Marking device



Feb. 13, 1945. H. K. FERGER MARKING DEVICE Filed May 2e, 1944 #www f3/qw INVENToR.

BY Fw' YW, www F am cooperating parts.`

Parenteel Feb'. is, 194s MARKING Diivicii Hulbert K. Ferger, Flushing, N. Y., assgnor of `Y one-half to John B. Thomson, `Ivlandome, N. Y.

' Aopuoatioo Mey ze, 1944, seria; No-5s791 s c1e'ims.- loi. 12o-1s) The', objeotof this invention 'is'.to, provide `a marking device 'or pencil whereof the. lead 'or other marking material provided therein is ro-A tated to effect the marking while the device or pencil itself is held in a stationary .position upon vthe spot to be marked. Whilel of general utility,

rately formed, as in the case of the punching method and apparatus described in my copending patentapplication flled concurrentlyhere- With. ,I Y

I, In the embodimentV of my inventionshown in thel drawing, Fig. lis a central longitudinal section thereof, Fig. 2 atransverse section on aplane indicated by the line 2--2 `in Fig. 1,r and Fig. 3 a detailedv view in perspective of a couple ofits AThe marking `material 30, which will generally be referred to hereinafter `as the lead, will usually have a dat (rather .than pointed) end corresponding in size to that of the dots tobe marked; and normally thisk end of the lead will project beyond the end of the pen-cil, as shown in Fig. 1. The other end ofthe lead is received .and held in the forward end of a plunger 3| in anysuitable manner so as tobe rotatedA by the plunger wheneverthe latter rotates; and the forward end of the plunger is threadedv to an internallythreaded tubular extension thereof 32 through which the lead passes and which extension normallyl abuts against andv is keyed (Fig. 3) 13.6 @shoulder 33 of a tubular fitting 34 from which the lead, projects atY the end.y ofthe pencil., The other end ofthe pencil comprises a handle 35 and an outersleeve 36,'rigidly secured thereto; the4 lattenhaving atelescoping t with an inner sleeve 3,1 provided with a helicalJgroovev 38vin its periphery for engagement withpins `39 carried by the outer sleeve. l

In the rear endof the sleeve 31` a plu g40 is. se` cured vhaving a square hole throughawhich the and the lead a'resilient bushing 5| may be provided to afford sufficient friction between the fltting and lead to prevent the latter from falling out.v Finally, a compressed spring 44 is provided in the head ofthe pencil, between the handle 35 and thefsleeve 31, to keep the pencil normally in its extendedposition, that is toI say with the parts related to each other as shownin'Fig. 1.

VWhenapplied to mark dots upon a work-piece or other article, thel pencil with its parts in the positions shown in Fig. 1, willeordinarily be used as follows:` The tubular iittingl'34 on the end of vthe pencilr will be pressed and held flatly against the surface of 'the` article to be marked` and where a perforated template is used tolocate the placesto bemarked, a bushing 45 ,ofthe proper shape and sizeto fitv the perforations inthe template may be secured to said fitting by a set screw 46. Generally, the pencil will be held in a vertical position above the spot to be marked.. With the pencil in position for marking, a slight pressure upon the handle will bring the end of the tubular'fitting` 34, and the bushing45fif used,

. fitting." With the parts in this position, con- ,A

rear. end14| .ofthe plunger extends, such rear end being square-shaped to t the hole so that when the inner` sleeve 31is rotated bythe traverse of the pins 39 in the groove 38, the plunger will also be rotated and, in turn, will rotate the lead. Moreover, the tubular extension 32r of the plunger is closely fitted to the inner sleeve 31 4so as to be `rotatedthereby when unkeyed'from the fitting 34.* On the forward end of the sleeve 31, a' nut 4.2 .is'provided' tosecure the shoulder 33 ofthe tubular fitting 34thereto with sufficient clearance between said nuty and sleeve to permit said fitting andsaid sleeve to turn or be turned independently of each other# A compressed spring flush with the surface ofthe article to be marked, thus forcing the lead back into the pencil until its flat marking' end isiiush with the, end of the fitting. AThis rearward movement of the lead, acting as it does' upony the l,forward end of the *plunger to which it is attached,` will 'impart a. corresponding rearward movementv to the plunger and its tubular extension 32 'against the pressure of the spring 43, and thereby release the tubular extensionl from its keyed engagement withsaid tinued pressure uponthe handle will cause the outer sleeve 3S to4 telescopefupon and rotate the innersleeve 31 which, in'turn, through the plug 40 and extension 4I ofthepiunger, will oause'the plunger and lead to rotateiwnile' the fitting 34, being now pressed downupon the article to be marked and therefore notyfreely rotatable, will neverthelessfnot oppose the rotation of the plunger and lead since it is unKeyed fromr the tubular extension 32. Thelmarking having been effected bythe rotation of the lead, the handle is re-l leased andthe parts of the pencil are returned to their normal or starting positions through the action ofthe springs 43 'and 44.

' An important feature of my improved pencil is that it provides marks of uniform diameter and of uniformly consistentbrig'htness, due to the fact that the marking end of the lead, which is flat and uniform in diameter, is always pressed against the'surface to be marked with a constant pressure irrespective of-the forceexerted `on the pencill by the operato'n'and to the further fact that -eac'h marking strokefautomatically imparts to the lead the same number of turns.

When, due to the consumption of the lead` or for any other reason, the `projecting endof the i pluneer'willppas's Ji alwill 'then 'for' i lead becomes shorter than the length of the key vLll, the fitting 34 and the tubular extension 32 of the plunger will remain keyed together so d that said tubular kextension willnot, be -free to rotate withth inner fsle'eve 31. wlfie'nfthel fitting is held .stationary by fri'ctionall Contact with an t article to be marked. In such a case, whenv thehan-dle is depressed it will cause the plunger, through its threaded engagement with the-imma# lar extension 32, to draw thelatterfav/lay rom fitting 34 until released from itsflieyed'erlzg'agement therewith. This, as will be seen from Fig; l; will havethe eiect of feeding 'fthe "lead forward outer sleeve upon the'inner sleeve the latter will be rotated, a plunger connected to the inner sleeve so as to be rotated thereby while movable .longitudinally in relation thereto, a tubular extension; ion :ithefjforward'endgoil fthe plunger, an abutment on .the forward end of `the"inner sleeve, fra spring normally holding said tubular exten-l v' -tionagainst 'said abutment, and a lead within and thusautomatically restore the project-ing endof the lead to its proper length for satis# fac-tory operation. '1 -Moreoven fthe `lead Frnay/fbe "rnfariu'alllf-""rnoved-` i-ri-V v either 'irection- -loysimply theY projectingaend loff #theflead may -be' readily adjusted *asv desired.` "whenever fthe Vll-'ea'd breaks 'o'r'ish practically exhausted; said-tting may be rotated toffee'd ythe unused partf-forward'where it "can lbergrasped and' 'reirioved;fwhereiiponV lrby lturning thelgttifn'gin V"theo'oppo'site direction *the plung'erni'ay be res'toredtoethe position shown 'in saidf'ltubular extension and connected to the plunger-:seas tobe'rotated thereby and normally vextendingbeyondthe end of said device.

3. In a marking device, the combination with 1 ap'airof Atelescopingsleeves and means connecting`lv the :same whereby upon the telescopingvof the outer sleeveupon the inner sleeve the latter will be rotated;y a plunger' connected-tothe'inner 'able longitudinally y:in relation thereto; r-atubular tubular extension 32-wl'ieibeing res'toredto this' that it willfcontactf-the "squ'arhol'e in the plug lill 'throughwliich 1'th roundedportion cannot pass)A r'beforejthe"threaded'end 'ofthe' pmng'eris 'of' the "plunger such 'that menthe usable .portionof 'the le'adis exhausted, the rear end of" the orward ofthe pawljthe' spring arropming 3511"provided in. sadjsleeve 361 "when the unused portion o'f 'thelead'is' wthdraw1,"the

is lusei'toy denote alsticl'; o'f marking material of anydesird composition.l I '1I claim asmyinverition` 1'..Y In al marking I devic e, vthe, combi-nation a vpairV of teleseoping ,sleeves vand. .means connect-` ingfthe Lsame whereby -uponthertelescopi-ngwof the 1 outer d. sleeveupon the inner .sleeve the .latter will berotated, a .plunger connected .to the inner .sleeve so as to be retained thereby,while movablelongi-f I tudinallyv in .relation thereto-means yconstantly urging the plunger forward .in grelationgtothe inner"sleeve,"rneahsA to limit said forwardfmovement, and a lead Aconnected to the plunger so .as torloeA rotateduthereby and the forward end of he other end tif-'the Vpawi into gagem'ent, andar lead. within said tubular extension-and llsaid fitting `and Jconnect'ed to `thetplm-1g extension on the l forward Yend f of :the -lp1un=ger,'

a Itubular tti'ng 4'secured 'to-- the forward' end fof :the inn'erl sleeve, a springv 'normally holding: said tubularextension against'sai'd ttingfandi'a lead l within said vtubularextensiorl land sai'd'ttin'g and connected tothe plunger so as to berotated I't-,her'eby and'normally extending beyond 'lthefend rvoffsaiddevi'ce. f

l 4 4.- iIn. a marking device,- ythe coibinauonf, with a pair of telescoping sleeves and meansV connect- 'ingthe fsame whereby upon the -telescoping`= of thef outer .1 sleeve` upon lthe innerisl'eeve' fithej flatter will -be rotatedy Aa vp-lungerconnect'ed tothe firmer sleeve so fas to be rotated thereby-While movable llongitudinally :in-relation thereto, fa tubular extension on the forward end Ofsftlie plungerfan'd 35' closely fitted to lthe inner sleeve, vfa 'tubular 1itting keyed to ythe"forwardand of saldi-tubular 'extension'and 'secured -tolthe inner sleeve sof-that thefinner sleeve-fand said iltting areindependently rotatable, a Vspring normally 'holding said itubular :extension and 'lfsai'd fitting linp keyed enerso'asftobe rotated thereby-and normally extending beyondatlfiefen'dicfisai'd-device. f -5. The combination'setfforth fnfclaimrfland in which the :tubular 'extension fi'.sv4 'Athre''a'dedl#tol therorwardendof theplunger.l l `fhe fcombination setfforth rinclalilllr' '4 and which the forward'lportion lof theplungeris j of greater -area-inlcrossf section than lits; rearplor- 'ti-on.,:and lthe cormectionfbetween'the"plunger f andthe-inner fsleeve A4comprises aip1ug-llinf-the inner .sleeve having an' .opening-to fit thefrear portionof theplunger fand through Awhich `"that portionofy theplunger extends.

7. The combination set forth "in#eflfai-rrr!31f and infwhich the means connecting-.thefisnnerl.sleeve f f and .the 'louter ksleeve:comprise :a helicaly grooveiin one ofi.the;s1eeves:and "a pinfins'saidagroove con nected .to the father zslee've, :the: outer sleeve scar'- rying 2a :spring l to .maintain :theel sleeves vnormally inltheirextended:position Q Y v ,1k

`8. The combination .set/aforthn 'clannzilmnd in which the inner-sleeve-zcarri'e'sra Lpawl fone 'Send which normally ;extendsbeyond thependflof :said

"2f n a .marking ,-devica theonibination with a pair of telescoping :sleeves .andfmeans .connectingl`th'e-samel whereby upon the ,telescoping ofthe of which normallymests Lupon 1 thelilunger :and Ja spring pressing *.the'oth'er endcof `the.-pawl:fagamst the inner surface of lt'he Youtersleeve,ithelouter sleeve having azslot;into which saidfotherL-end of .the .pawris-:fo-rced by-said fs'pringiwhen :the

end of .the plunger passesrtorWard .oftheLpawL 

